$ sudo apt-get install wget vim build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libxml2-dev libxslt-dev autoconf automake libtool imagemagick libpcre3-dev

zsh:

sudo apt-get zsh 

oh-my-zsh: (https://github.com/robbyrussell/oh-my-zsh) (http://ruby-china.org/topics/734)

wget --no-check-certificate https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | sh

rvm: (https://github.com/wayneeseguin/rvm) 

==================
              VIM
==================

1、安装先决条件
sudo apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev xclip ncurses-dev automake

2、安装rvm
2.1 安装
$ bash < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)
2.2 shell 脚本配置

#sh
$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.profile
#zsh
$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >>  ~/.zshrc
#bash
$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >>  ~/.bashrc

2.3 reload shell

$ source .profile 

2.4 验证是否安装正确
$ type rvm  &&   rvm -v

2.5 查看ubuntu下各类ruby版本需要哪些条件
$ rvm requirements

3、这里我安装 ruby 1.93 的版本

rvm install 1.9.3
 

4、安装rails 

这里我创建了一个gemset ：

rvm不仅可以提供一个多ruby版本共存的环境，还可以根据项目管理不同的gemset.

gemset可以理解为是一个独立的虚拟gem环境，每一个gemset都是相互独立的。

比如你有两个项目，一个是rails 2.3 一个是 rails 3. gemset可以帮你便捷的建立两套gem开发环境，并且方便的切换。

gemset是附加在ruby语言版本下面的，例如你用了1.9.2, 建立了一个叫rails3的gemset,当切换到1.8.7的时候，rails3这个gemset并不存在。

{12-02-26 9:50}[ruby-1.9.3]ubuntu:~ user% rvm gemset create rails3 
'rails3' gemset created (/home/user/.rvm/gems/ruby-1.9.3-p125@rails3).
{12-02-26 9:54}[ruby-1.9.3]ubuntu:~ user% rvm use 1.9.3@rails3 
Using /home/user/.rvm/gems/ruby-1.9.3-p125 with gemset rails3
{12-02-26 9:54}[ruby-1.9.3]ubuntu:~ user% rvm use 1.9.3@rails3 --default
Using /home/user/.rvm/gems/ruby-1.9.3-p125 with gemset rails3

加入淘宝的ruby镜像库（速度快很多） 

{12-02-26 10:00}[ruby-1.9.3]ubuntu:~ user% gem sources --remove http://rubygems.org/
http://rubygems.org/ removed from sources
{12-02-26 10:00}[ruby-1.9.3]ubuntu:~ user% gem sources --add http://ruby.taobao.org/
http://ruby.taobao.org/ added to sources
{12-02-26 10:00}[ruby-1.9.3]ubuntu:~ user% gem sources list

*** CURRENT SOURCES ***

http://ruby.taobao.org/

 最后安装rails 以及 bundle等gems

gem install rails bundle therubyracer 

=======================================================
BTW：求一块空间上传标准配置的UBUNTU RUBY VMWARE 镜像文件。 
=======================================================